กะโหลกเหลี่ยม SHIAMNO BB-UN300 แท้ศูนย์ไทย

กะโหลกเหลี่ยม SHIAMNO BB-UN300 แท้ศูนย์ไทย ขนาด •68-110 MM. •68-113 MM. •68-118 MM. •68-122.5 MM. •73-113 MM. •73-118 MM. •73-122.5 MM. Square Type Bottom Bracket BB-UN300 SHIMANO - Square Type Bottom Bracket - MTB - Standard Structure Square Type Bottom Bracket FEATURES •SHIMANO quality/performance cartridge bearing square bottom bracket •Better chainline stability with chain line stabilizer •3 structures available •Standard, E-type, chain case options •Adapter material: Aluminum